When it comes to wireless audio, you will definitely shake your head. Everyone generally thinks that the use of wireless transmission of audio signals will eventually fall off. However, as cars eventually replace carriages, it is the general trend for wireless to replace wired. Everyone's impression of wireless audio is not good enough, many of them may be due to the influence of Bluetooth audio products. Although the data rate of Bluetooth 4.2 is known as 24Mbps, this rate is achieved by calling WiFi when high-speed data transmission is required. The maximum transmission speed of standard Bluetooth is only 2.1Mbps. Therefore, due to the limitation of Bluetooth bandwidth, Bluetooth speakers and Bluetooth The headset can only transmit audio signals with low resolution and low sampling rate, which makes some users think that the sound quality of wireless audio is too poor, but transmitting high-quality audio signals is not a problem for WiFi.
Hi-Fi is the abbreviation of English High-Fidelity, literally translated as "high fidelity", its definition is: replay sound highly similar to the original sound. To evaluate whether a sound system or equipment meets high-fidelity requirements, it should generally be conducted by a combination of subjective listening evaluation and objective index testing, with objective test indicators as the main basis. Because the performance indicators of the instrument test equipment can be used to obtain very intuitive quantitative results for reference and comparison, it is undoubtedly the most scientific and trustworthy.
Wireless alternative to wired is a big trend
In terms of high-quality transmission of audio, Wi-Fi with high data bandwidth has natural advantages. Now the very popular SONOS is to build a HiFi system using a wireless network, and gradually build a HiFi system through WiFi. In response to this demand, Lingxin Microelectronics recently launched a WiFi chip optimized for audio applications, opening up a far-reaching imagination for the future of wireless audio high-fidelity systems.
The wireless audio system is refreshing and clean
In response to the audio transmission delay and the synchronization of left and right channels that are often encountered when building high-fidelity audio systems, GKM910T / GKM910R launched by Lingxin is optimized for audio applications based on the standard WiFi protocol. GKM910T / 910R uses hardware to ensure that the left and right channel synchronization delay is less than 20us, the delay of the entire system is controlled at about 10ms, supports independent 8-channel transmission, can achieve 7.1 wireless surround sound, and supports 192K sampling rate 24 bits Lossless transmission of high-fidelity audio formats. At the same time, it has been optimized in terms of anti-interference. Using channel pre-detection technology, it can avoid other signal interference to the greatest extent, ensure the stability of the system, and achieve high-fidelity sound quality.
When it comes to sound quality, WiFi has a lot of advantages over Bluetooth
Compared with 2.4G wireless audio system, using WiFi to build HiFi system is also a lot of advantages
The 8 channels transmitted by the GKM910T can be controlled independently
For special application markets, customizing standard products may be one of the future development directions of domestic start-up IC manufacturers. Hi-Fi audio system can be divided into integrated, packaged and combined in structure. The integrated sound system is to assemble various functions of equipment and speakers in a chassis, and cannot be disassembled at will. Such machines are generally low-end popular machines. The set-type audio system is designed by the manufacturer, and it is equipped with a variety of equipment, which can be disassembled between the units. The sound combination is to choose various types of equipment according to personal preferences, and free combination.
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